A report in a research journal states that the average weight loss of people on a certain drug is 25 lbs with a margin of error of +2 Ibs with confidence level C = 95%. (a) According to this information, the mean weight loss of people on this drug, 4, could be as low as Ibs (b) If the study is repeated, how large should the sample size be so that the margin of error would be less than 1 Ibs? (Assume o = 9 lbs, and use at least 3 decimal places in your critical value.) ANSWER:

A report in a research journal states that the average weight loss of people on a certain drug is 25 lbs with a margin of error of +2 Ibs with confidence level C = 95%. (a) According to this information, the mean weight loss of people on this drug, 4, could be as low as Ibs (b) If the study is repeated, how large should the sample size be so that the margin of error would be less than 1 Ibs? (Assume o = 9 lbs, and use at least 3 decimal places in your critical value.) ANSWER:

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 30PPS

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